E12000009 · England

Heat pumps across Somerset (local authority area): 2026 grant + cost guide

By Jim FellLast updated:

TL;DR

  • BUS grant of £7,500 toward an air-source heat pump applies in Somerset (England).
  • Median EPC band across 175,193 local properties: C.
  • 50% of homes sit at band D or below — typical retrofit candidates.
  • Top property band in Somerset: C (34%).
  • MCS-certified installer required for a binding heat-loss quote.

What the EPC data shows for Somerset

We’ve aggregated the current Energy Performance Certificate band for 175,193 properties in Somerset, drawn live from the GOV.UK EPC Register. The median home in our sample sits at band C, with 34% falling into band C and 32% in band D. Around 50% of homes are at band D or below — the cohort with the most realistic retrofit upside.

EPC band distribution across 175,193 properties in Somerset
BandPropertiesShareRetrofit context
Band A1,8801.1%Already exceptional; heat pump replaces fossil heat directly
Band B27,64215.8%Strong fabric; heat-pump-ready after minor checks
Band C59,10533.7%Typical retrofit candidate; small upgrades likely
Band D56,16032.1%Insulation prerequisites likely; well-suited post-upgrade
Band E22,34912.8%Insulation recommendations typically required for BUS
Band F6,3113.6%Significant fabric improvements before heat pump fit
Band G1,7461.0%Fabric-first retrofit before any heat-pump consideration
EPC band distribution across 175,193 properties in SomersetSource: GOV.UK EPC Register. Sample collected 2026-05-14.

The typical Somerset home

What the EPC data shows beyond the headline rating — useful context for sizing a heat-pump install.

  • Floor area: median 81 (25th–75th percentile: 62109 m²). Heat-pump sizing scales roughly with floor area — expect a 5–8 kW unit at the median.
  • Current heating cost: median £725/yr 481– £1,132 typical range). The number an installer’s running-cost saving projection sits against.
  • Mains gas connection: 68% of properties. Mixed grid: heat-pump payback runs much shorter for the off-grid minority (oil / LPG).
  • Property type mix: Detached 31%, End-Terrace 14%, Mid-Terrace 20%, Semi-Detached 32%.
  • Dominant age band: England and Wales: before 1900 (15% of homes). Sets the fabric-first work expected before commissioning.

Does the Boiler Upgrade Scheme apply in Somerset?

Yes. Somerset is in England, where the Boiler Upgrade Scheme (BUS) pays £7,500 toward an air-source heat pump install. The grant is administered by Ofgem and deducted by the installer at the point of invoice — you never see the cash. To qualify, the property must be owner-occupied or privately rented, have a valid EPC issued in the last 10 years, and have no outstanding loft-or-cavity insulation recommendation on the EPC (unless an exemption is documented). In our sample of Somerset EPCs the median rating is band C, which means most homes need to clear at least one insulation recommendation before the installer can claim the grant.

Typical install cost in Somerset

Pre-grant install costs in Somerset typically run £8,000 to £14,000 for a 5–10 kW air-source unit, in line with UK averages — labour rates in E12000009 sit close to the national mean. After the £7,500 BUS deduction most Somersethomeowners pay £1,500 to £6,500 out of pocket. The figure within that range that applies to your property depends on three things: heat-loss sizing (set by floor area, fabric and air-tightness), radiator upgrades (most pre-2000s homes need at least one or two changed), and hot-water cylinder provision. An MCS-certified engineer issues the binding quote after a heat-loss calculation per BS EN 12831.

What this means for your home

Whether a heat pump is a good fit for your specific home in Somersetdepends on three factors the EPC alone can’t answer: roof + outdoor space for the external unit, radiator sizing throughout the heating circuit, and your current heating fuel + tariff. Propertoasty’s free pre-survey check combines your address, an EPC pull, the Google Solar API’s roof data, and a floorplan vision analysis to produce an installer-ready report — typically takes about five minutes.

Run a free pre-survey check on your home — installer-ready report, BUS-eligibility verdict, sizing range, and a list of MCS-certified installers covering Somerset.

How Somerset compares

Compared with the England + Wales average band-D share of roughly 45%, Somerset’s 32% sits below the national midpoint. Bands E and worse — typical pre-1930s homes without significant retrofit — make up 17% of the local sample, which compares to the E&W average of around 22%.

Sources

  1. GOV.UK — Boiler Upgrade Scheme — accessed May 2026
  2. Ofgem — Boiler Upgrade Scheme guidance — accessed May 2026
  3. MCS — Find an installer — accessed May 2026
  4. GOV.UK — Find an energy certificate (EPC Register) — accessed May 2026
  5. Energy Saving Trust — Air source heat pumps — accessed May 2026

EPC aggregate data contains public sector information licensed under the Open Government Licence v3.0 (© Crown copyright and database right).